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Fair Value Measurements - Narrative (Details) (USD $) | 3 Months Ended | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 Other Long-term Obligations | Dec. 31, 2013 Other Long-term Obligations | Jun. 30, 2014 Accrued Liabilities | Dec. 31, 2013 Accrued Liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |
Other Asset Impairment Charges | $ 85,000 | $ 2,000 | $ 119,000 | $ 53,000 |  |  |  |
Contingent consideration liability |  |  |  |  | 1,900,000 | 2,300,000 |  |
Contingent consideration liability |  |  |  |  |  |  | $ 620,000 | $ 274,000

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- Definition Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Contingent Liability, Current + References No definition available. + Details
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- Definition The charge against earnings resulting from the write down of long lived assets other than goodwill due to the difference between the carrying value and lower fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2921-110230 + Details
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